Chapter 514: The Sprout of Daming's Chemical Industry (Page 1/1)

Yao Qisheng was surprised: "Cotton will also explode? That movement just now is really not small......"

Zhu Linmiao said angrily: "I'll let you prepare more cotton, and you will buy a small two thousand catties at once." ”

He then explained the principle that the fine fiber dust has a large contact surface with the air, and after reaching a certain proportion, it will explode when it encounters fire, "This room full of cotton is amazingly powerful when it bursts, and it is fortunate that it does not hurt anyone." ”

In fact, even in the Ming Dynasty, people knew that the warehouses where cotton and flour were stored should be strictly fireproof, otherwise there would be an explosion. However, Yao Qisheng and the others were all scholars, and He had been to the warehouse to see it, and it happened that the cotton purchased this time was extremely fluffy, and he almost took his life.

Fortunately, the most valuable experimental equipment was originally in Shaoxing, and it had not yet been delivered at this time, otherwise it would have taken a lot of effort to get these things together.

Zhu Linmiao asked people to simply clean up the scene, let Yao Qisheng and them go to rest first, and he picked up the lamp and began to compile the "Laboratory Safety Regulations".

The next day, Yao Qisheng and the others had just eaten breakfast, and each of them had a few pages of bound paper stuffed in their hands.

"Laboratory safety regulations?" Someone looked at it and said, "In order to ensure the normal progress of the experiment and strengthen the safety management of the laboratory, this safety system is specially formulated." Note: Suitable for explosives configuration experiments.

"1. Before starting the experiment, it is necessary to plan the response to the safety accident, set up an escape route, and equip it with fire extinguishing and healing equipment......

"2. All experimental raw materials, instruments, finished products, etc. must be managed by a special person, and the safety inspection report must be filled in every day......

"3. Before leaving the experimental site every day, water, fire, poison, etc. must be turned off, and the doors and windows must be closed......

"Fourth, before large-scale experiments begin, all raw materials and processes must be tested in small doses......

"5. Dangerous experiments, such as high temperature, explosion, toxicity, etc., must wear prescribed protective clothing......"

Shi Lin finished sending out the copied "Regulations", and added, "Your Highness has an order that you must memorize all of them before lunch." ”

"Yes...... The student receives the order. ”

It's not that Zhu Linmiao is making a big fuss, but just using this incident to start standardizing laboratory management and processes. Under a set of scientific experimental management system, as long as the state is willing to invest in silver and talents, it can be said that any scientific research project is only a matter of time.

Of course, this "Regulation" is only the simplest beginning, but in this direction, the Ministry of Industry will soon be able to standardize the experiments involving all aspects. This is of much greater significance to the advancement of the technological progress of the entire Ming Dynasty than the production of nitrocellulose itself.

By the end of the day, all the people involved in the experiment had completed their recitation, and it happened that the carriage carrying the experimental equipment in Shaoxing had also arrived.

Yao Qisheng and the others immediately skillfully assembled a set of utensils. There are many things that the Ming Dynasty can't produce by itself, such as the four- or five-foot-long spiral glass condenser tube, which Qiao Weili got from the Spaniards, and the price is eighteen taels of silver!

It seems that the glass factory also needs to step up its planning. Zhu Lin said in her heart, if one of these experimental tools is broken, it will not be able to make up for it in a month or two. There is also an urgent need for a large number of glass bottles at the cannery. In addition, when the glass factory is completed, it can also produce a large number of optical instruments, utensils, lampshades, decorations, etc., which can greatly support both the military and people's livelihood.

However, he has no time to take care of the glass factory for the time being, and the focus is on the trial production of nitrocellulose.

“…… Therefore, the key point of this nitrocellulose is that it produces fuming nitric acid and pure cotton. Zhu Linmiao took the trouble to explain the production process of nitrocellulose again.

Although this thing is simple - in Verne, it took only four or five lines to make it - but in the production process of the century, any detail that goes wrong will lead to the failure of the trial production.

The process in Zhu Linmiao's memory is only "pure cotton fiber", "concentrated nitric acid", and "nitrification for 15 minutes". If you want to make a powerful military nitrocellulose, you have to rely on Yao Qisheng and others through repeated trials.

Zhu Linmiao and a group of "scientific researchers" roughly discussed the test process, and then ordered: "Then it is tentative, Ma Lin and his personal soldiers are responsible for cleaning cotton, Li Tianchun is responsible for making fuming nitric acid, and Yao Qisheng is in charge of synthesis.

He looked at Yao Qisheng again, "By the way, you said that you had already made fuming nitric acid when you were in Fujing?" ”

Due to the volatile nature of nitric acid, concentrated nitric acid will absorb water in the air to form a layer of fog, and the so-called "fuming nitric acid" refers to nitric acid with a concentration of more than 90%. This thing is the basis of almost all explosives, and it is one of the core chemical raw materials, and it is also the key agent that Zhu Linmiao ordered to try to produce early in the morning.

"Back to Your Highness, it has indeed been prepared by distillation, but the output is less."

With concentrated nitric acid, the nitrocellulose is half produced. Zhu Linmiao nodded with satisfaction, as for the output, nitrocellulose doesn't use much.

"Let's go, let me see how you make nitric acid."

In the dilapidated house outside Nanjing, Yao Qisheng and others took the things used in the experiment. Soon, Li Tianchun began to calcinate a green powder in a glass flask, and someone else was responsible for keeping an eye on the fire and sealing the equipment. Shortly after, smoke passes through the condenser tube and enters the collection bottle at the other end.

Yao Qisheng explained: "This nitric acid can actually be prepared since ancient times, but there is too much water in it. Later, Master Song remembered that His Royal Highness mentioned that concentrated sulfuric acid can absorb water, and then thought of using concentrated sulfuric acid to start nicotine nitric acid, and finally succeeded after several attempts. ”

Daming has never been short of talents! Zhu Linmiao was also very pleased, he only created some soil a little, and Daming's Gezhixue had begun to take root.

By the time of the unitary, a large bottle of concentrated sulfuric acid had been made in the laboratory. Li Tianchun immediately led people to mix the prepared saltpeter powder with concentrated sulfuric acid—the ratio was the one they had already tested—and began to bottle and burn again. That's where the extremely long condenser tube comes in handy.

In fact, the Ming Dynasty had a mature "empirical science" very early, such as "calcining alum to extract alum oil", which is actually the soil method to make concentrated sulfuric acid. In addition, "decoction and basin nitrate" is a method of recrystallization and purification of saltpeter. These are recorded in "Heavenly Creations".

With these local experience, coupled with the chemical knowledge system brought by Zhu Linmiao, how can Daming's chemical production not be rapid in one day?

Taking advantage of the volatility of nitric acid and the dehydration of concentrated sulfuric acid, the other end of the condenser tube quickly gathered a light yellow liquid at the bottom of the bottle - concentrated nitric acid. It's just that the price of green alum and saltpeter is not cheap, and Zhu Linmiao has to use extremely pure raw materials, so this nitric acid costs nearly ten taels of silver, but it cannot be used for large-scale industrial production.

(End of chapter)

Remember the mobile version URL: m.